package org.langqiao.datatype;

public class Puzzle_2_5 {

	
	public static void main(String[] args) {
		char x ='X';
		int i = 0;
		System.out.println(true ?x:0);
		System.out.println(false ?i:x);
		System.out.println("H"+"a");
		System.out.println('H'+""+'a');
		StringBuffer sb = new StringBuffer();
		sb.append('H');
		sb.append('a');
		System.out.println(sb.toString());
	}

}
